import { IntPair } from './IntPair';
export declare class IntPairMap<T> {
    isEmpty(): boolean;
    private arrayOfMaps;
    set(x: number, y: number, v: T): void;
    setPair(p: IntPair, v: T): void;
    delete(x: number, y: number): void;
    has(x: number, y: number): boolean;
    get(x: number, y: number): T;
    getI(p: IntPair): T;
    /** n is the maximum of (x + 1) where (x, *) runs over the keys  */
    constructor();
    keys(): IterableIterator<IntPair>;
    keyValues(): IterableIterator<[IntPair, T]>;
    values(): IterableIterator<T>;
    get size(): number;
}